Change Access Databse Password

https://www.experts-exchange.com/questions/21080111/Change-access-password-with-Delphi.html

copying the solution

var
  db1, db2, fp1, fp2 : string;
begin
  db1:='c:\test\test.mdb';    // original flename
  db2:='c:\test\new.mdb';   // new filename
  fp1:='password';        //original file password
  fp2:='password';       //new file password
  try
    StatusBar.SimpleText:='Loading driver...';
    v := CreateOLEObject('JRO.JetEngine');
    try
      v.CompactDatabase('Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' + db1 +
                        ';Persist Security Info=False' + fp1,
                        'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' + db2 +
                        'x; Jet OLEDB:Engine type=5'+ fp2);
    except
    on E:Exception do
           ShowMessage(E.Message);
    end;
  finally
    v := Unassigned;
    StatusBar.SimpleText:='Done.';
  end;
end;

sun4sunday

Hi, are you using ADO? Try

ALTER DATABASE PASSWORD MyNewPassword MyOldPassword

e.g.:
ADOCommand1.CommandText := 'ALTER DATABASE PASSWORD MyNewPassword MyOldPassword';
ADOCommand1.Execute;

see:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnacc2k/html/acadvsql.asp

and you might want to have a look at
https://www.experts-exchange.com/questions/21900292/Protect-access-database-with-password.html